72499792 has 20 divisors (see below), whose sum is σ = 141335200. Its totient is φ = 36026208.

The previous prime is 72499787. The next prime is 72499807. The reversal of 72499792 is 29799427.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11292 + ... + 16507.

It is an arithmetic number, because the mean of its divisors is an integer number (7066760).

Almost surely, 2^72499792 is an apocalyptic number.

It is an amenable number.

72499792 is a deficient number, since it is larger than the sum of its proper divisors (68835408).

72499792 is a wasteful number, since it uses less digits than its factorization.

72499792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27970 (or 27964 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 72499792 is about 8514.6809687739. The cubic root of 72499792 is about 416.9771470050.

The spelling of 72499792 in words is "seventy-two million, four hundred ninety-nine thousand, seven hundred ninety-two".